package com.ruoyi.project.gzbook.loopimage.controller;

import java.io.File;
import java.io.IOException;
import java.util.List;
import java.util.UUID;

import org.apache.shiro.authz.annotation.RequiresPermissions;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import com.ruoyi.framework.aspectj.lang.annotation.Log;
import com.ruoyi.framework.aspectj.lang.enums.BusinessType;
import com.ruoyi.project.gzbook.loopimage.domain.DgLoopImage;
import com.ruoyi.project.gzbook.loopimage.service.IDgLoopImageService;
import com.ruoyi.framework.web.controller.BaseController;
import com.ruoyi.framework.web.domain.AjaxResult;
import com.ruoyi.common.utils.poi.ExcelUtil;
import com.ruoyi.framework.web.page.TableDataInfo;
import org.springframework.web.multipart.MultipartFile;

/**
 * 轮播图Controller
 * 
 * @author mhg
 * @date 2021-10-09
 */
@Controller
@RequestMapping("/gzbook/loopimage")
public class DgLoopImageController extends BaseController
{
    private String prefix = "gzbook/loopimage";

    @Autowired
    private IDgLoopImageService dgLoopImageService;

    @Value("${my_upload_path}")
    private String dirPath;

    @RequiresPermissions("gzbook:loopimage:view")
    @GetMapping()
    public String loopimage()
    {
        return prefix + "/loopimage";
    }

    /**
     * 查询轮播图列表
     */
    @RequiresPermissions("gzbook:loopimage:list")
    @PostMapping("/list")
    @ResponseBody
    public TableDataInfo list(DgLoopImage dgLoopImage)
    {
        startPage();
        List<DgLoopImage> list = dgLoopImageService.selectDgLoopImageList(dgLoopImage);
        return getDataTable(list);
    }

    /**
     * 导出轮播图列表
     */
    @RequiresPermissions("gzbook:loopimage:export")
    @Log(title = "轮播图", businessType = BusinessType.EXPORT)
    @PostMapping("/export")
    @ResponseBody
    public AjaxResult export(DgLoopImage dgLoopImage)
    {
        List<DgLoopImage> list = dgLoopImageService.selectDgLoopImageList(dgLoopImage);
        ExcelUtil<DgLoopImage> util = new ExcelUtil<DgLoopImage>(DgLoopImage.class);
        return util.exportExcel(list, "轮播图数据");
    }

    /**
     * 新增轮播图
     */
    @GetMapping("/add")
    public String add()
    {
        return prefix + "/add";
    }

    /**
     * 新增保存轮播图
     */
    @RequiresPermissions("gzbook:loopimage:add")
    @Log(title = "轮播图", businessType = BusinessType.INSERT)
    @PostMapping("/add")
    @ResponseBody
    public AjaxResult addSave(String descp, MultipartFile file) throws IOException {
        DgLoopImage dgLoopImage = new DgLoopImage();
        dgLoopImage.setDescp(descp);

        //保存文件到相关路径
        //得到原始文件名
        String fileName = file.getOriginalFilename();
        //得到后缀名
        String suffix = fileName.substring(fileName.lastIndexOf("."));
        //得到唯一文件名
        fileName = UUID.randomUUID()+suffix;
        //保存图片的路径

        File dirFile = new File(dirPath);
        //判断如果文件夹不存在 创建
        if (!dirFile.exists()){
            dirFile.mkdirs();
        }
        //得到文件的完整路径
        String filePath = dirPath+"/"+fileName;
        //保存文件  异常抛出
        file.transferTo(new File(filePath));
        //保存文件名
        dgLoopImage.setImagePath(fileName);
        return toAjax(dgLoopImageService.insertDgLoopImage(dgLoopImage));
    }

    /**
     * 修改轮播图
     */
    @GetMapping("/edit/{id}")
    public String edit(@PathVariable("id") Long id, ModelMap mmap)
    {
        DgLoopImage dgLoopImage = dgLoopImageService.selectDgLoopImageById(id);
        mmap.put("dgLoopImage", dgLoopImage);
        return prefix + "/edit";
    }

    /**
     * 修改保存轮播图
     */
    @RequiresPermissions("gzbook:loopimage:edit")
    @Log(title = "轮播图", businessType = BusinessType.UPDATE)
    @PostMapping("/edit")
    @ResponseBody
    public AjaxResult editSave(DgLoopImage dgLoopImage)
    {
        return toAjax(dgLoopImageService.updateDgLoopImage(dgLoopImage));
    }

    /**
     * 删除轮播图
     */
    @RequiresPermissions("gzbook:loopimage:remove")
    @Log(title = "轮播图", businessType = BusinessType.DELETE)
    @PostMapping( "/remove")
    @ResponseBody
    public AjaxResult remove(String ids)
    {
        return toAjax(dgLoopImageService.deleteDgLoopImageByIds(ids));
    }
}
